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Finding the Fourth Proportional to 6,556.56, 9,835.80 and 2,660.10

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Solution

The fourth proportional to 6,556.56, 9,835.80 and 2,660.10 is: 3,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,556.56 : 9,835.80 = 2,660.10 : x
  2. Step 2: Convert to fraction form
    6,556.56/9,835.80 = 2,660.10/x
  3. Step 3: Cross multiply
    6,556.56x = 9,835.80 × 2,660.10
  4. Step 4: Simplify right side
    6,556.56x = 26,164,211.58
  5. Step 5: Solve for x
    x = 26,164,211.58/6,556.56
  6. Step 6: Final answer
    x = 3,990.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.